Left 4 Dead 2 Add-on Support
| App ID | 564 |
| App Type | Config |
| Technologies | Source Engine |
| Last Changenumber | 36948261 |
| Last Record Update | 30 June 2026 – 20:57:34 UTC ( |
Additional Information
| Developer | Valve | |
| gamedir | Left 4 Dead 2 LD DLC | |
| icon | empty string | |
| NoServers | Yes | |
| primarycache | 564 | |
| state | eStateUnAvailable | |
| dedicatedserverfolder | left4dead2 | |
| VisibleOnlyWhenSubscribed | Yes | |
| sourcegame | Yes | |
| MustOwnAppToPurchase | Left 4 Dead 2 (550) | |
| Detected Technologies | Source Engine, Bink_Video SDK, CEF SDK, Miles_Sound_System SDK | |
| First seen on SteamDB | 14 February 2013 – 08:20:25 UTC ( |
